1. Department of Hematology, Oncology and Radiation Physics Skåne University Hospital Lund Sweden
2. Medical Radiation Physics, Department of Clinical Sciences Lund University Lund Sweden
3. Radiotherapy Research Unit, Department of Oncology Herlev Hospital, University of Copenhagen Copenhagen Denmark
4. Department of Clinical Sciences, Division of Oncology and Pathology Lund University Lund Sweden
5. Department of Oncology Odense University Hospital Odense C Denmark